Solutions: Polynomial and Rational Functions Practice Test

1. Yes. 3. Increasing 5. y = –1.5x – 6 7. y = –2x – 1 9. No. 11. Perpendicular 13. (–7, 0); (0, –2) 15. y = –0.25x + 12 17. 19. 150 21. 165,000 23. y = 875x + 10,675 25. a) 375 b) dropped an average of 46.875, or about 47 people per year c) y = –46.875t + 1250 27. 29. Early in 2018 31. y = 0.00455x + 1979.5 33. r = 0.999

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